package com.fwj.interfaceexample;

/**
 * @author stone.feng
 * @since 2019-02-27
 */
public interface Father {

    /**
     * 变量默认修饰符  public static final   只能是常量，只读不能改。为实现接口的对象提供一个统一的属性
     * 且必须赋予初值
     */

    String A = "父类变量A";

    String B = "父类变量B";

    int C = 1;

    public static final int D = 3;

    void add();
}